Collapsible hammock



FIG. 1 is a perspective view of a collapsible hammock showing my newdesign;

FIG. 2 is a side-elevational view the opposite side being a mirror imagethereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for a collapsible hammock, as shown and described.